* Fix bug with non-regexp Find in Files searches
* Move Find/Replace UI into a template (must use a hack to hide linebreaks
from the browser though, since whitespace changes the spacing between
neighboring inline elements).
* Force Tab/Shift+Tab to cycle between the two fields in Replace bar,
instead of closing it. Tab behavior unchanged (vs. master) in Find &
Find in Files bars.
* If Replace bar wraps due to very narrow window, break only at the gap
between the Find UI & Replace UI.